function popup() {
	var url = "index-popup.html";
	var width = 800;
	var height = 600;
	var properties = "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=" + width + ",height=" + height;
	var myPopup = window.open(url, "myPopup", properties);
	myPopup.focus();
}